Quadrajet1 wrote: > >Hi all > > > >I was just wondering how I can differentiate between an Apple IIe and Apple > >IIe Enhanced (not platinum) by looking at the board/software. > > > >Thanks > >Ron > > The Apple Enhanced //e has different ROMs and a CPU from the unenhanced > version. > > Chip Unenhanced Enhanced > > CPU 6502 65C02 > CD ROM 341-0135 341-0304 > EF ROM 341-0134 341-0303 > VIDEO 341-0133 341-0265 Note that the video ROM would be different for Ron, because he is in Australia, and is probably looking at the International (UK English) version of the IIe. The other chips should be the same. Note that some 65C02 chips are labelled "6503". (The keyboard ROM is also different between the US and International versions, but there is no change to this ROM between the original and enhanced IIe.) > If you see a motherboard with only 2 RAM chips, instead of 8, it's enhanced. That would be the platinum version, which is easily distinguishable due to the case - no need to look inside. If you are able to turn the machine on, the easiest way to identify an enhanced IIe is to look at the machine name printed on the top line of the startup screen: Apple ][ indicates an unenhanced IIe Apple //e indicates an enhanced IIe The catch is that you might have a machine which has been partially enhanced: it is possible for the CPU, video ROM and firmware ROMs (CD and EF) to be updated independently (the firmware ROMs must be a matching pair). Looking at the chips would be safest bet. It is possible for software to detect a 65C02 or 6502 processor and check the firmware revision, but only the user would be able to tell which video ROM is installed. Looking at the title on the screen only identifies which firmware ROMs are installed. The enhanced IIe video ROM has mousetext characters in place of one of the inverse uppercase sets in the alternate character set. If you don't know the expected chip numbers, it would be necessary to run a program which tries to display mousetext and see if you get inverse uppercase instead (or a program which uses the "wrong" inverse uppercase set, such as the DOS 3.3 version of AppleWriter IIe; it will display mousetext characters on an enhanced IIe). -- David Empson dempson@actrix.gen.nz Snail mail: P O Box 27-103, Wellington, New Zealand